868. Решите уравнение: 1) x + 4,83 = 9; 2) 43,78 - x = 5,384; 3) x - 14,852 = 15,148; 4) 2,395 + x = 10.

Решение:

1. \[ x + 4,83 = 9 \]
2. \[ x = 9 - 4,83 \]
3. \[ x = 4,17 \]
4. \[ 43,78 - x = 5,384 \]
5. \[ x = 43,78 - 5,384 \]
6. \[ x = 38,396 \]
7. \[ x - 14,852 = 15,148 \]
8. \[ x = 15,148 + 14,852 \]
9. \[ x = 30 \]
10. \[ 2,395 + x = 10 \]
11. \[ x = 10 - 2,395 \]
12. \[ x = 7,605 \]

Ответ: 4,17; 38,396; 30; 7,605.